$(function() {
$("#sliderContent img").next().hide().append('<input value="Show less" type="button" class="btn" />');
$("#sliderContent img").click(function() {
$(this).next().slideToggle();
});
$("input.btn").click(function() {
$(this).parent().slideUp();
});
});
This question has been answered by multiple community members. See the first response.

$(function() {
$("#sliderContent img.btn-down").next().hide().append('<input value="Show less" type="button" class="btn" />');
$("#sliderContent img.btn-down").click(function() {
$(this).next().slideToggle();
});
$("input.btn").click(function() {
$(this).parent().slideUp();
});
});